diff --git a/FHEM/00_MAXLAN.pm b/FHEM/00_MAXLAN.pm
index 2d18024ef..2bbc6baa3 100755
--- a/FHEM/00_MAXLAN.pm
+++ b/FHEM/00_MAXLAN.pm
@@ -545,7 +545,7 @@ MAXLAN_Parse($$)
     my $dhash = $modules{MAX}{defptr}{$addr};
     if(defined($dhash)) {
       readingsBeginUpdate($dhash);
-      readingsBulkUpdate($dhash, "firmware", $firmware);
+      readingsBulkUpdate($dhash, "firmware", sprintf("%u.%u",int($firmware/16),$firmware%16));
       readingsBulkUpdate($dhash, "testresult", $testresult);
       readingsEndUpdate($dhash, 1);
     }
diff --git a/FHEM/14_CUL_MAX.pm b/FHEM/14_CUL_MAX.pm
index 938ab161e..7a98ea450 100644
--- a/FHEM/14_CUL_MAX.pm
+++ b/FHEM/14_CUL_MAX.pm
@@ -329,7 +329,7 @@ CUL_MAX_Parse($$)
         my $dhash = CUL_MAX_DeviceHash($src);
         if(defined($dhash)) {
           readingsBeginUpdate($dhash);
-          readingsBulkUpdate($dhash, "firmware", $firmware);
+          readingsBulkUpdate($dhash, "firmware", sprintf("%u.%u",int($firmware/16),$firmware%16));
           readingsBulkUpdate($dhash, "testresult", $testresult);
           readingsEndUpdate($dhash, 1);
         }